Looking to do a teraflex budget boost on the wife's jku sport. I picked up some 2014 Rubicon take-offs for a song. Quadratec states the budget 2.5 boost needs wheel spacers if using factory wheels. Is this legit? What size spacers do you sugest? 1.5" or 1.75" an explanation of why spacers are needed would be amazing.
Thanks
OneLessPrius

Could I run an aev 2" spacer suspension kit w/ stock wheels without wheel spacers? I will be running 275 75 17 tires.

Those are roughly a 33 inch tire which may run at full lock. You can add spacers if you find they rub and you're not happy with it.

Spidertrax does have a great product. Really, any hub-centeric Wheel Spacer will work about the same. Most guys will tell you to torque the spacer bolts when you do your oil changes to make sure everything stays safe.